/*
 * CCVisu is a tool for visual graph clustering
 * and general force-directed graph layout.
 * This file is part of CCVisu.
 *
 * Copyright (C) 2005-2011  Dirk Beyer
 *
 * CCVisu is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * CCVisu is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with CCVisu; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Please find the GNU Lesser General Public License in file
 * license_lgpl.txt or http://www.gnu.org/licenses/lgpl.txt
 *
 * Dirk Beyer    (firstname.lastname@uni-passau.de)
 * University of Passau, Bavaria, Germany
 */
package org.sosy_lab.ccvisu.readers;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.logging.Level;

import org.sosy_lab.ccvisu.graph.Relation;
import org.sosy_lab.ccvisu.readers.factextractor.FactExtractor;
import org.sosy_lab.common.LogManager;
import org.sosy_lab.common.configuration.Configuration;
import org.sosy_lab.common.configuration.InvalidConfigurationException;
import org.sosy_lab.common.configuration.Option;
import org.sosy_lab.common.configuration.Options;

/**
 * This class provides the functionality of directly extracting relations
 * from a software project.
 */
@Options(prefix="reader.software")
public class ReaderDataGraphSoftware extends ReaderDataGraph {

  @Option(name="sourceDirectory",
      description="Path to the source code. This is required when extracting "
          + "from sourcecode.")
  private String            sourceDirectory = "";

  @Option(name="sourceLibraries",
      description="Path to the libraries")
  private String            sourceLibraries = "";

  @Option(name="sourceBlacklist",
      description="List of all packages to be ignored when creating the "
          + "relations.")
  private ArrayList<String> sourceBlacklist = new ArrayList<String>();

  public ReaderDataGraphSoftware(LogManager logger, BufferedReader reader,
      Configuration config) throws InvalidConfigurationException {
    super(logger, reader);
    assert(config != null);

    config.inject(this);
  }

  @Override
  protected Relation readTuples() {
    File src = new File(sourceDirectory);

    Relation relation = null;

    try {
      FactExtractor factExtractor = new FactExtractor(src.getCanonicalPath(),
          sourceLibraries, sourceBlacklist);
      relation = factExtractor.extractRelations();
    } catch (IOException e) {
      logger.logUserException(Level.SEVERE, e, "Error: '" + sourceDirectory
          + "' is not a valid source directory.");
      System.exit(1);
    }

    return relation;
  }
}
